r/musictheory is a subreddit with 704k members. The community frequently discusses looking for, music theory, chords, theory, and struggling, and they frequently recommend/review music theory book, notation software, and theory books, and the most common flair used is general question, notation question, discussion, songwriting question, and resource (provided).
/r/musictheory is a community for the discussion of music theory and related topics. Since they are not well-covered in other subreddits, questions and discussions about Ear-Training/Solfege and Notation/Engraving are also welcome.
Popular Topics in r/musictheory
#1
Looking For
43 posts
#2
Music Theory
35 posts
#3
Chords
31 posts
#4
Theory
31 posts
#5
Struggling
30 posts
#6
Notation
22 posts
#7
Harmony
14 posts
#8
Ear Training
12 posts
#9
Music
12 posts
#10
Rhythm
12 posts
Products Discussed in r/musictheory
Music Theory Book
136 reviews
#1
Tonal Harmony
4.5★ from 4 reviews
#2
Arnold Schoenberg
4.3★ from 4 reviews
#3
Vincent Persichetti
4.3★ from 3 reviews
Notation Software
48 reviews
#1
MuseScore
4.3★ from 11 reviews
#2
Finale
3.1★ from 7 reviews
#3
Sibelius
3.7★ from 7 reviews
Theory Books
46 reviews
#1
W.A. Mathieu
5.0★ from 2 reviews
#2
Mark Levine
5.0★ from 2 reviews
#3
Adler
5.0★ from 1 review
Flair Used in r/musictheory
#1
General Question
: "Why is this circle of fifths different from every other one i have seen?"
104 posts
#2
Notation Question
: "Weird double paragraph sign thingy"
48 posts
#3
Discussion
: "Any word-rhythm pairings you'd change for kids (3-7)? Images will be added later."
21 posts
#4
Songwriting Question
: "Why does D → E7/D → Gmaj7 sound so ethereal in a D major piece?"
12 posts
#5
Resource (Provided)
: "Inspired by other recent posts, may I present the "Tesseract of 5ths""
8 posts
#6
Analysis (Provided)
: "My dad told me this was one and a half quarter notes. Help"
3 posts
#7
Ear Training Question
: "How to train your ears to hear chords?"
3 posts
Member Growth in r/musictheory
Yearly
+68k members(10.7%)
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Last updated: June 18, 2026